A SIMPLIFIED FUCHSIN SULPHITE (ENDO) AGAR

The Fuchsin-aldehyde Reac on on the ..endo Medium

The medium had a light pink color when h t and was practically colorless when poured into Petri dish s and allowed to harden. On this medium Endo observed t t B. coli and its close allies gave a distinct red coloration w e B. typhosus was practically colorless. The red color of the . coli colonies, according to this author, was due to the format on of acid but he did not give any experimental e...

Acid Fuchsin Methylene Blue Agar: a New Differential Medium for Enteric Bacteria.

Despite the development of successful selective media favoring the more pathogenic members of the Enterobacteriaceae, media of primarily differential nature have not been entirely satisfactory for several reasons, such as the following: (1) Generally only colonies of lactose fermenters are colored, whereas the colorless colonies of nonfermenters tend to be masked by the diffusion of dye from fe...

A Simplified Technique for the Agar Cup Assay of Penicillin.

Simplified 48-hour IMVic test: an agar plate method.

An agar plate method was developed for the performance of the IMVic (indole, methyl red, Voges-Proskauer, and citrate) tests in lieu of the conventional tubed liquid media. By modifying the composition of the media and adding agar, a single "X"-compartmented petri dish was prepared containing all four IMVic test media. Ease of performance and simplification of the test were achieved by inoculat...

Simplified agar plate method for quantifying viable bacteria.

We have developed a simple and reproducible technique that we have termed “track dilution” for enumerating viable bacteria, which reduces time and materials required compared to standard agar plate colony counting methods. Many microbiological applications require an accurate determination of bacterial numbers prior to inoculation into, or subsequent to their isolation from, experimental models...